The Effect of Material Properties and Axial Tension on the Collapse of Brain Bridging Veins - the Angiosynizesis
2010
Abstract
The experimental biomechanical study of the bridging veins shows that the thin wall veins have the elastic modulus approx. 4.104 Pa and thick wall veins have the elastic modulus one order higher. Based on the one dimensional fluid structure approximation was proved that for the brain vein contraction about 5%, the vein collapse can occurs even under normal physiological condition into vessels - the angiosynizesis.
The experiments by the latex tubes with variable inner diameter and wall thickness support this conclusion. Moreover, this phenomenon was simulated by the finite element method for the anisotropic Gent material model.